Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit bf594a89 authored by Alexandre Courbot's avatar Alexandre Courbot Committed by Thierry Reding
Browse files

dt-bindings: Add documentation for GP10B GPU 



GP10B's definition is mostly similar to GK20A's and GM20B's. The only
noticeable difference is the use of power domains instead of a regulator
for power supply.

Signed-off-by: default avatarAlexandre Courbot <acourbot@nvidia.com>
Acked-by: default avatarRob Herring <robh@kernel.org>
Signed-off-by: default avatarThierry Reding <treding@nvidia.com>
parent 0e84ac6c

Documentation/devicetree/bindings/gpu/nvidia,gk20a.txt

+24 −1
Original line number Original line Diff line number Diff line
@@ -5,6 +5,7 @@ Required properties: 
  Currently recognized values:

  Currently recognized values:

  - nvidia,gk20a

  - nvidia,gk20a

  - nvidia,gm20b

  - nvidia,gm20b

  - nvidia,gp10b

- reg: Physical base address and length of the controller's registers.

- reg: Physical base address and length of the controller's registers.

  Must contain two entries:

  Must contain two entries:

  - first entry for bar0

  - first entry for bar0
@@ -14,7 +15,8 @@ Required properties: 
- interrupt-names: Must include the following entries:

- interrupt-names: Must include the following entries:

  - stall

  - stall

  - nonstall

  - nonstall

- vdd-supply: regulator for supply voltage.

- vdd-supply: regulator for supply voltage. Only required for GPUs not using

  power domains.

- clocks: Must contain an entry for each entry in clock-names.

- clocks: Must contain an entry for each entry in clock-names.

  See ../clocks/clock-bindings.txt for details.

  See ../clocks/clock-bindings.txt for details.

- clock-names: Must include the following entries:

- clock-names: Must include the following entries:
@@ -27,6 +29,8 @@ is also required: 
  See ../reset/reset.txt for details.

  See ../reset/reset.txt for details.

- reset-names: Must include the following entries:

- reset-names: Must include the following entries:

  - gpu

  - gpu

- power-domains: GPUs that make use of power domains can define this property

  instead of vdd-supply. Currently "nvidia,gp10b" makes use of this.





Optional properties:

Optional properties:

- iommus: A reference to the IOMMU. See ../iommu/iommu.txt for details.

- iommus: A reference to the IOMMU. See ../iommu/iommu.txt for details.
@@ -68,3 +72,22 @@ Example for GM20B: 
		iommus = <&mc TEGRA_SWGROUP_GPU>;

		iommus = <&mc TEGRA_SWGROUP_GPU>;

		status = "disabled";

		status = "disabled";

	};

	};



Example for GP10B:



	gpu@17000000 {

		compatible = "nvidia,gp10b";

		reg = <0x0 0x17000000 0x0 0x1000000>,

		      <0x0 0x18000000 0x0 0x1000000>;

		interrupts = <GIC_SPI 70 IRQ_TYPE_LEVEL_HIGH

			      GIC_SPI 71 IRQ_TYPE_LEVEL_HIGH>;

		interrupt-names = "stall", "nonstall";

		clocks = <&bpmp TEGRA186_CLK_GPCCLK>,

			 <&bpmp TEGRA186_CLK_GPU>;

		clock-names = "gpu", "pwr";

		resets = <&bpmp TEGRA186_RESET_GPU>;

		reset-names = "gpu";

		power-domains = <&bpmp TEGRA186_POWER_DOMAIN_GPU>;

		iommus = <&smmu TEGRA186_SID_GPU>;

		status = "disabled";

	};